1 // SPDX-License-Identifier: GPL-2.0
2 #include <test_progs.h>
3 
4 void test_reference_tracking(void)
5 {
6 	const char *file = "test_sk_lookup_kern.o";
7 	const char *obj_name = "ref_track";
8 	DECLARE_LIBBPF_OPTS(bpf_object_open_opts, open_opts,
9 		.object_name = obj_name,
10 		.relaxed_maps = true,
11 	);
12 	struct bpf_object *obj_iter, *obj = NULL;
13 	struct bpf_program *prog;
14 	__u32 duration = 0;
15 	int err = 0;
16 
17 	obj_iter = bpf_object__open_file(file, &open_opts);
18 	if (!ASSERT_OK_PTR(obj_iter, "obj_iter_open_file"))
19 		return;
20 
21 	if (CHECK(strcmp(bpf_object__name(obj_iter), obj_name), "obj_name",
22 		  "wrong obj name '%s', expected '%s'\n",
23 		  bpf_object__name(obj_iter), obj_name))
24 		goto cleanup;
25 
26 	bpf_object__for_each_program(prog, obj_iter) {
27 		struct bpf_program *p;
28 		const char *name;
29 
30 		name = bpf_program__name(prog);
31 		if (!test__start_subtest(name))
32 			continue;
33 
34 		obj = bpf_object__open_file(file, &open_opts);
35 		if (!ASSERT_OK_PTR(obj, "obj_open_file"))
36 			goto cleanup;
37 
38 		/* all programs are not loaded by default, so just set
39 		 * autoload to true for the single prog under test
40 		 */
41 		p = bpf_object__find_program_by_name(obj, name);
42 		bpf_program__set_autoload(p, true);
43 
44 		/* Expect verifier failure if test name has 'err' */
45 		if (strncmp(name, "err_", sizeof("err_") - 1) == 0) {
46 			libbpf_print_fn_t old_print_fn;
47 
48 			old_print_fn = libbpf_set_print(NULL);
49 			err = !bpf_object__load(obj);
50 			libbpf_set_print(old_print_fn);
51 		} else {
52 			err = bpf_object__load(obj);
53 		}
54 		ASSERT_OK(err, name);
55 
56 		bpf_object__close(obj);
57 		obj = NULL;
58 	}
59 
60 cleanup:
61 	bpf_object__close(obj);
62 	bpf_object__close(obj_iter);
63 }
64